4 papers
Symbol Alphabets from Plabic Graphs
Jorge Mago, Anders Schreiber, Marcus Spradlin +1
Symbol alphabets of n-particle amplitudes in N=4 super-Yang-Mills theory are known to contain certain cluster variables of Gr(4,n) as well as certain algebraic functions of cluster…
A Note on One-loop Cluster Adjacency in N = 4 SYM
Jorge Mago, Anders Schreiber, Marcus Spradlin +1
We study cluster adjacency conjectures for amplitudes in maximally supersymmetric Yang-Mills theory. We show that the n-point one-loop NMHV ratio function satisfies Steinmann clust…
Yangian Invariants and Cluster Adjacency in N=4 Yang-Mills
Jorge Mago, Anders Schreiber, Marcus Spradlin +1
We conjecture that every rational Yangian invariant in N=4 SYM theory satisfies a recently introduced notion of cluster adjacency. We provide evidence for this conjecture by using…
Celestial Amplitudes: Conformal Partial Waves and Soft Limits
Dhritiman Nandan, Anders Schreiber, Anastasia Volovich +1
Massless scattering amplitudes in four-dimensional Minkowski spacetime can be Mellin transformed to correlation functions on the celestial sphere at null infinity called celestial…